Finding the Fourth Proportional to 98,819.41, 136,370.74 and 53,497.36
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Solution
The fourth proportional to 98,819.41, 136,370.74 and 53,497.36 is: 73,826.33
Step by Step Solution
- Step 1: Write the proportion equation
98,819.41 : 136,370.74 = 53,497.36 : x - Step 2: Convert to fraction form
98,819.41/136,370.74 = 53,497.36/x - Step 3: Cross multiply
98,819.41x = 136,370.74 × 53,497.36 - Step 4: Simplify right side
98,819.41x = 7,295,474,571.25 - Step 5: Solve for x
x = 7,295,474,571.25/98,819.41 - Step 6: Final answer
x = 73,826.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.